Final answer:
Thinning of the epidermis is one of the changes that occur to the skin as we age.
Step-by-step explanation:
As we age, several changes occur to the skin. One of these changes is thinning of the epidermis, which is the outer layer of the skin. This thinning is due to decreased mitosis in the stratum basale, the bottom layer of the epidermis, leading to a reduction in the number of skin cells produced. Additionally, the dermis, which provides elasticity and resilience to the skin, loses its ability to regenerate, resulting in slower wound healing. Lastly, there is a decrease in oil production, which can contribute to drier skin.